Twin law

From Online Dictionary of Crystallography

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= Twin law =
= Twin law =
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The ''twin law'' is indicated by the symbol of the twinning elemnt of symmetry:
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The ''twin law'' is indicated by the symbol of the twinning element of symmetry: <math> \bar 1</math>, [uvw] and (''hkl'') for the centre of symmetry, direction of the rotation axis and [[Miller indices]] of the mirror plane, in the order. Usually, instead of the single (''hkl'') plane, the symbol

Revision as of 14:45, 21 April 2006

 Legge di geminazione (It)


Twin law

The twin law is indicated by the symbol of the twinning element of symmetry:  \bar 1, [uvw] and (hkl) for the centre of symmetry, direction of the rotation axis and Miller indices of the mirror plane, in the order. Usually, instead of the single (hkl) plane, the symbol